scott



D. J. SCOTT.

OFFSET WEB PEBFECHNG MACHINE.

APPLICATION FILED SEPT=29, I916.

Patented July 22, 1919.

3 SHEETS-SHEET 2.

D. J. SCOTT.

OFFSET WEB PERFECIING MACHINE.

APPLICATION r1150 SEPLZQ. 1916.

1,311,138. Patente4lJ11ly22, 1919.

3 SHEETS--SM ET 3..

' moved but with the ang UNITED STATES PATENT OFFICE.

DAVID JOHN SCOTT, 0F rumrmnn, NEW JERSEY, ASSIGHOR 'I'O ISABELLA SCOTTAND DAVID J. SCOTT, EXECUTOBS OF WALTER SCOTT, DECEASED.

OFFSET WEB-PEBFECTING MACHINE.

Specification of Letters Patent.

Patented July 22, 1919.

To all whom it may concern:

Be t known that I, DAVID J. Soon, a citizen of the United States, and aresident of Plainfield, in the county of Union and State of New Jersey,have invented certain new and useful Improvements in OffsetWeb-Perfecting Machines, of which the following is a specification.

The present invention relates generally to offset web perfectingmachines and has more particularly reference to the general arrangementof the units and of the parts composing the same.

The main object of this invention is to produce a machine that willprint and perfect paper by the offset method without the omission ofparts essential to high grade results; and further, to render the partscomposing the machine readily accessible for manipulation by theoperator.

Accordin ly, the invention consists of the features of construction,combination of parts and arrangement of elements, herelnafter described,several preferred forms of which are disclosed in the accompanyingdrawings. However changes may be made in the particular constructionherein disclosed without departing from the legitimate and intendedscope of the invention.

In the drawings:

Figure 1 is a view in elevation, largely diagrammatic in form, of amachineembody mg the invention.

ig. 2 is a lan view, also largel diagrammatic, an partly in section, one line 2-2 of Fig. 1, with the printing units ree bars shown in theirrelative position to indicate the lead of the paper.

Fig. 3 1s a view similar to Fig. 1, showug a modified form of theinvention in whi the paper is printed in several colors.

A indicates a form-carrying member, C a transfer or blanket member and Ean imression member, constituting one unit, and

indicates a form-carrying member, D a transfer or blanket member and Fan imression member constituting a second unit. The form-carrying andtransfer members of each unit are arranged one above the other and theimpression member out of line with the other members to form an exposedoperating side, the two. units being grouped with their operating sidesoutermost and with the impression members innermost. The usual inking aparatus O is used in connection with each orm carrying member; and,should the character of work require it, dampening mechanism, such as N,are employed for dampening the form. Said dam ening mechanisms arelocated adjacent to t e operating sides of the machine. In connectionwith the impression member of the second coukple there is also providedan anti-smutting evice 37 located on the u per surface of saidimpression member an intermediate the two units. Suitable throwofi's forthe cylinders are rovided so as to render the parts accessibl Thetransfer members are provided with sliding boxes and a .handle '100 forcontrolling the boxes and by which they may be moved out of contact withthe impression members and the form-carrying members by a movementoutwardly from the 0 rating sides of the machine. Similarly, t eimpression memrs are provided with sliding boxes or handles 101 wherebythey may be thrown off the transfer members and moved inwardly of themachine toward each other. The dampening mechanisms N and theanti-smutting device 37 may be moved members with which they enga byoperating handles 102 controlling the s iding movement of the parts. Asource I of the su ply of paper is located beneath the units an in thepresent instance, there may be two such sources from either of which theweb may be led to aguide roller X and thence to the first unit of themachine. The source of supply ismounted in bearings I which openoutwardly from the outwardly operatingsides of the machine so that thepaper may be replenished with facility, the usual two rolls 1'- mittingthe o erator to operate the mac inc with one r0 while the other roll isbeing replenished. L indicates a folder located at the end of the unitsand spaced therefrom to provide a suitable gangway or platform H; andpreferably above the first unit are arran two angle bars 103, that arein line wit folder L and that serve to bring the slitted sections of theweb into superposed relation so that they may be directed to the folder.A slitter 104 and a straight bar 105 are located above the units andintermediate thereof. Located between the folder and the end of theunits is a motor 106 which actuaway from the ates a gear 107 that drivesthe members of the rioting units and which also actuates anot er gear108 that drives folder L.

The paper is led from the source I of the supply over guide roller X,thence between impression member E and transfer member C of the firstprinting unit, thence to the under side of impression member F andbetween the latter and the transfer member D of the second unit, andthence upwardly to slitter 104, bar 105, and then the slittedsections-are passed over angle bars 102?, each being given a quarterturn to superlmpose the same, after which the paper runs straight tofolder L.

In Fig. 3 is shown a modified form of the invention in which the twounits, the folding mechanism, the angle bars and the slitter, etc, arearranged exactly as before. In this instance, however, another unit isadded consisting of form-carr ing member B, transfer member D animpression member F, and having the inking mecha nism O and thedampening mechanism N, as before, and also an anti-smutting device 37'.This unit is located under the second unit with its operating sideoutermost.

In this form of the invention the paper is led from the source of supplyI over guide roll X to impression member E of the first unit, thenceover guide roll X downwardly of the machine between the units to guideroller X, and thence upwardly between impression memberF" and impressionmember D and between the same, and thence upwardly between impressionmember F and transfer member D of the second of the two first printincouples. Thence the paper rises upwar ly between the units and passes tothe slitter, angle bars and folder as before. In this case the paper isfirst printed on one side in a single color and is then printed on theother side in two cglors, there being a separate unit consisting of aform carrying, a transfer and an im ression member for each color; andeach 0 the impression members of the two superposed units are providedwith anti-smutting devices to prevent the previously printed side fromsoiling the surface of the im ression members.

What is claimed, is: p

l. A rotary offset web perfecting machine comprising: a plurality ofunits printing frompositive forms on op osite sides of imressionreceiving materl each umt includmg a. form-carrying, a transfer and animpression cylinder all of substantially the same diameter, theform-carrying and transfer cylinders arranged one above the other andthe impression cylinder out of line with the other cylinders to form anexposed operatmg side, said units grouped with their operating sidesoutermost, and delivery means located at the end of the units and spacedtherefrom to afford unobstructed access to said units, said meansincluding a folder, a slitter and angle bars for giving both sections asingle quarter turn to bring them in superposed relation to the folder.

2. A rotary offset web perfecting machine comprising: a plurality ofunits printing from positive forms on opposite sides of impressionreceiving material, each unit including a form-carrying, a transfer andan impression cylinder all of substantially the same diameter, theform-carrying and transfer cylinders arranged one above the other andthe impression cylinder out of line with the other cylinders to form anexposed operating side. said units grouped with their operating sidesoutermost, delivery means located at the end of the units and spacedtherefrom to afford unobstructed access to said units, said meansincluding a folder, a slitter and angle bars for giving both sections asingle uarter turn to bring them in superposed re ation to the folder,and a source of supply of impression receiving material located beneaththe units.

3. A rotary ofl'set web perfecting machine comprising: a plurality ofunits printing from positive forms on opposite sides of impressionreceiving material, each unit including a form-carrying, a transfer andan impression cylinder all of substantially the same diameter, the formcarrying and transfer cylinders arranged one above the other and theimpression cylinder out of line the other cylinders to form an exposedoperating side, said units grouped with their operating sides outermost,delivery means located at the end of the units and spaced therefrom toafford unobstructed accessto sa'ul units, said means includinga folder,a slitter and angle bars for giving both sections a single quarter turnto bring them in superposed relation to the folder, and an anti-smuttindevice located above the impression cylinder of the second unit and inengagement with the surface thereof.

4. An ofiset web perfecting machine comprising: a plurality of units,each unit including a form-carrying, a transfer and an impressionmember, the form-carrying and transfer members being arranged one abovethe other and the impression member out of line withthe other members toform an exposed operating side, the units being grouped with theiroperating sides outermost, a folder located at t e end of the units andspaced therefrom to provide a gangway, a motor located between the endof the units and impression cylinder, the form-carrying and 130 transfercylinders being arranged one above the other and the impression cylinderout of line with the other cylinders to form an exposed operating side,the units being grouped 5 with their 0 e'rating sides outermost, afolder located at t e end of the units and spaced therefrom to provide agangway, a motor located between the end of the units and the folder,and driving connections from said motor for actuating the cylinders ofthe 10 units and the folder.

Signed at Plainfield, in the county of Union and State of New Jersey,this 27th day of September, A. D. 1916.

DAVID JOHN SCOTT.

Witnesses:

CARL E. DRANGE, J. V. CoLEs.

It la hereby cex tified that in Letters Patent No. 1,511,138, grantedJuly 22, 1919, upon the application of Dafvld John Scott, of Plainfield,Now Jersey, for an improvement in Offset Web-Perfecting Machines," anerror nppe ars in the printed apecificotion roquiringcorrootioh asfollows: Page 1, line 92, strike out the word outwardly and that thesaid Letters Patdnt should be read with this correction therein thnt.thesome may conform to the record of the case in the Patent Oflioo Signedand healed this aozh dny of September, A. 1)., 1919,

[BEALJ M. H. COULSTON,

Acting Commissioner qfPatmts. Cl. 270-5.

